Table 3. TRG Promoter Hypermethylation in Primary Tumors and Histopathology(+) SLNs of Pediatric Melanoma Patients.

TRG	Specimen	TRG hypermethylation frequency (%) (total n=37)
RASSF1A	Primary	7/20 (35)
	SLN	5/17 (29)
RARβ2	Primary	9/20 (45)
	SLN	4/16a(25)
WIF1	Primary	4/20 (20)
	SLN	4/16^a (25)
APC	Primary	5/20 (25)
	SLN	3/16^a (19)

One specimen from methylation analysis of these TRGs that provided non-informative results by CAE was excluded from analysis.